Grey skies are a common feature of northwest England but you can never really know what to expect. June to August is the warmest time of year when days can be sunny and pleasant - or overcast and humid. Spring and autumn can be beautiful, especially if you're visiting parks around Bolton. Winter days rarely fall below freezing, but rug up anyway. Rainfall is steady throughout the year but generally heaviest in autumn.
| Low temp (°C) | High temp (°C) | Sunshine (hours) | Rainfall (mm) | Humidity (am) | Humidity (pm) | |
|---|---|---|---|---|---|---|
| Jan | 2 | 6 | 50 | |||
| Feb | 2 | 7 | 44 | |||
| Mar | 4 | 10 | 42 | |||
| Apr | 5 | 12 | 44 | |||
| May | 8 | 16 | 40 | |||
| Jun | 10 | 18 | 50 | |||
| Jul | 12 | 20 | 47 | |||
| Aug | 12 | 20 | 56 | |||
| Sep | 10 | 17 | 49 | |||
| Oct | 8 | 14 | 69 | |||
| Nov | 5 | 10 | 58 | |||
| Dec | 3 | 7 | 55 |
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